$KRYBON
Fading QuicklySnapshot Window: 2026-07-31 11:10 UTC · ← Back to Crypto Overview
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About the recent coldcard attack I’m trying to understand the security vulnerability of any cold hardware device. Since the attacks targeted coldcards specifically, it means the RNG of coldcard seed generations got figured out and they were able to brute force the secret phrase. Meaning the secret phrase generated by coldcards were predicted and narrowed down, the possibilities were NOT astronomical (they never were to begin with technically?) However, this does not mean any secret phrase can be brute forced Even cold devices with weak 12 words generation for example, cannot be targeted randomly by brute force since the possibilities are still enormous, UNLESS THE RNG of the device used to generate the secret phrase gets figured out and possibilities get narrowed down.